code: def df_iris():
      # Load Iris Dataset:
      df_iris = pd.read_csv(
          os.path.join(TEST_SETS_DIRECTORY, "iris", "iris.csv")
      )
  
      return df_iris
  
imports: import os
  import numpy
  import pandas
  import pytest
  import pandas_bokeh
label_desc: Use image node_id 2 for calling a global function with example usage: df_iris() and returns: df_iris